| 发明名称 |
Apparatus for making transversely drawn films with substantially uniaxial character |
| 摘要 |
A process for stretching films is described. The process preferably stretches films in a uniaxial fashion. Preferably, optical films are stretched including multilayer optical films. Other aspects of the invention include a roll of stretched film and an apparatus for stretching films.
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| 申请公布号 |
US7229271(B2) |
申请公布日期 |
2007.06.12 |
| 申请号 |
US20040933729 |
申请日期 |
2004.09.03 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
MERRILL WILLIAM WARD;JACKSON JEFFERY N.;RUFF ANDREW T.;WHEATLEY JOHN A.;KRUEGER DENNIS L. |
| 分类号 |
B29C55/02;B29C55/08;B29L11/00 |
主分类号 |
B29C55/02 |
| 代理机构 |
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